JES2 remote job entry (RJE) allows a remote workstation to submit
a job to a distant system and have the job processed by the system's
JES2. Your installation's security product can control RJE stations.
The output can be retained at the host system, sent to the workstation,
or sent to another location. JES2 processes a remote job as if it
had been submitted locally. The remote station becomes a logical extension
of the computer system that processes its jobs.
JES2 supports two ways of communicating with RJE remote stations:
- Through systems network architecture synchronous data link
control (SNA/SDLC) protocol. SNA stations gain access to JES2
through VTAM®.
- Through binary synchronous communication (BSC) protocol.
Communication between the local processor and a BSC RJE station uses
a JES2 facility called multi-leaving. Multi-leaving allows
transmission of multiple print and punch streams at the same time
and allows JES2 to receive multiple console messages and input streams.
For more information, see remote job entry in z/OS JES2 Initialization and Tuning Guide and z/OS V2R1.0 Communications Server: SNA Programming.
JES2 expects the remote station to be under the control of a remote
operator. The RJE stations can consist of two types of devices:
- Remote terminal, which does not have a processor. A remote
terminal can be used to enter jobs into and receive data from JES2.
- Remote workstation, which has a processor. A processor
executes a JES2-generated program that allows the processor to send
jobs to and receive data from JES2. The remote workstation may also
include printers, card readers and punches, and a console.
Remote Job Entry Stations
During JES2 initialization, installations can configure remote
lines as dedicated or non-dedicated. For non-dedicated remote lines,
use the following to notify JES2 that you wish to begin and end a
remote job stream processing session:
- For SNA remote workstations: the LOGON command to begin and either
the LOGOFF command or the JES2 /*SIGNOFF control statement to end.
- For BSC remote workstations: the JES2 /*SIGNON control statement
to begin and the JES2 /*SIGNOFF control statement to end.
For a discussion of the LOGON and LOGOFF commands, refer to z/OS JES2 Initialization and Tuning Reference and z/OS V2R1.0 Communications Server: SNA Programming.